8 police killed in ambush in northern Mexico

Eight police officers have been killed in an ambush in northern Mexico.

An official at the Sinaloa state attorney general's office says gunmen attacked four police cars on a highway in the town of Navolato on Monday. A ninth officer was wounded.

The official says the gunmen fled, although police found a vehicle several miles (kilometers) from the site that may have belonged to the attackers. The official spoke on condition of anonymity because of security reasons.

Sinaloa is the cradle of a powerful cartel by the same name.

Meanwhile, in the border city of Tijuana, police found the decapitated bodies of two men hung by their feet off a bridge. Their heads were found in a car abandoned on the bridge.